Georges Hostelet (1875–1960) was a Belgian chemist, sociologist, mathematician, and philosopher.
In 1897, he left the academy and enrolled in the University of Liège, where he received his doctorate in 1905. two years later, Hostelet began work with the Solvay & Cie Company as a chemical engineer and worked closely with Ernest Solvay.
During the war, he worked alongside English nurse Edith Cavell and was imprisoned by the occupying German forces, later being released in 1917.
Hostelet left Belgium in 1925 as part of a Franco-Belgian mission to teach social sciences at the University of Cairo.
He returned in 1931 and was appointed as a member of the International Statistical Institute in the Hague the following year.